Some people have called our current situation a reproducibility crisis. It’s hard to know how to define, exactly, the word crisis. But what we do know is that, of the efforts to try to systematically reproduce findings, whether they be in cancer biology, whether they be in psychology, the success rate has not been impressive.

Ramesh Raskar‘s team at MIT Media Lab have built a camera capable of capturing light trajectories at a trillion frames per second. Which is relatively fast. Jared Newman at Time’s Techlandpoints out that if it were slowed to a more conventional frame rate of around 30 fps, you would need an entire lifetime to watch just a tenth of a second of this footage.

A family friend put me on to the great Sixty Symbols (cheers, Cam)—a collection of videos featuring academics at the University of Nottingham. Each one is focused on a symbol with some important meaning in physics: γ links to a five-minute explanation of the Lorenz factor and time dilation; ψ to ten minutes on the wave function. Here’s Laurence Eaves and Mark Fromhold on chaos and the butterfly effect.